dnstracer determines where a given Domain Name Server (DNS) gets its information from, and follows the chain of DNS servers back to the servers which know the data.
| Tags | Internet DNS Networking Utilities |
|---|---|
| Licenses | BSD Original |
| Operating Systems | Unix |
Recent releases


Changes: The timeout command line parameter was re-integrated. IPv6 root server handling was fixed. A lame server issue with certain domain names was fixed.


Changes: Handling of timeouts was improved: instead of a static value, an initial value of five seconds is used, and is doubled with each retry. Warnings are printed if you receive a different RR type than the one you asked for (for example, when you ask for an A record and receive a CNAME). Problems which occurred when records received in the authority field are shorter than the domain for which the nameserver is authoritative were fixed. When compiled without IPv6 support on an IPv6 capable machine, the machine tried to query the IPv6 translated IPv6 address anyway.


Changes: IPv6 servers can now be traced, and a -S option was added for specifying the source IP address.


Changes: This release adds support for SOA records.


Changes: Added support for PTR records, and fixed some annoyances.
- All comments
Recent commentsRe: DJB's dnstrace differences?
> What is the difference between this and
> DJB's dnstrace (included in his djbdns
> package)? His dnstrace traces down all
> domain names from the root and does a
> great deal of output. URL:
> cr.yp.to/djbdns.html
- The license used
- The output. Please see http://www.mavetju.org/unix/dnstracer.php for more information.
DJB's dnstrace differences?
What is the difference between this and DJB's dnstrace (included in his djbdns package)? His dnstrace traces down all domain names from the root and does a great deal of output. URL: cr.yp.to/djbdns.html (http://cr.yp.to/djbdns.html)